SMC Networks EX260 Series Operation Manual page 13

○DeviceNet™ communication cable
A shielded twisted pair cable for DeviceNet
The max. cable length depends on the transmission speed and the cable type used.
TM
<DeviceNet bus cable specification>
Item
Conductor
area
Color
120 Ω ±10% (1 MHz)
Impedance
Propagation
delay
0.13 db / 100 ft@125 KHz (max.)
Attenuation
0.25 db / 100 ft@500 KHz (max.)
rate
0.36 db / 100 ft@1 MHz (max.)
Conductor
6.9 Ω / 1000 ft (max.)
resistance
<Transmission speed [kbps] and max. bus cable length>
Bus cable type Baud rate
500 kbps
Thick 250 kbps
125 kbps
Thin Common
Terminating resistor
TM
should be used.
Thick line
Signal
2
0.82 mm
Blue, White
1.36 ns/ft (max.)
1000 ft (max.)
Total main line length
100 m max.
250 m max.
500 m max.
100 m max.
Power
2
1.65 mm 0.20 mm
Red, Black Blue, White
120 Ω ±10% (1 MHz)
-
- 1.36 ns/ft (max.)
0.29 db / 100 ft@125 KHz (max.)
- 0.50 db / 100 ft@500 KHz (max.)
0.70 db / 100 ft@1 MHz (max.)
3.6 Ω /
28 Ω / 1000 ft (max.)
Branch line length
6 m max.
121 Ω / (1/2 W)
-12-
Thin line
Signal Power
2
0.33 mm
Red, Black
17.5 Ω /
1000 ft (max.)
Total main and branch line length
39 m max.
78 m max.
156 m max.
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No.EX##-OMN0013-D
2
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-
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